org.csstudio.data.values.internal

Class LongValue

java.lang.Object

org.csstudio.data.values.internal.Value

org.csstudio.data.values.internal.LongValue

All Implemented Interfaces:

ILongValue, IValue

public class LongValue
extends Value
implements ILongValue

Implementation of ILongValue.

Author:

Kay Kasemir, Xihui Chen

See Also:

ILongValue

Nested Class Summary

Nested classes/interfaces inherited from interface org.csstudio.data.values.IValue

IValue.Format

Field Summary

Fields inherited from class org.csstudio.data.values.internal.Value

MAX_FORMAT_VALUE_COUNT

Constructor Summary

Constructors

Constructor and Description
LongValue(ITimestamp time, ISeverity severity, String status, INumericMetaData metaData, long[] values) Constructs a new value from pieces.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
String	format(IValue.Format how, int prec) Format the value as a string.
long	getValue()
long[]	getValues()
int	hashCode()

Methods inherited from class org.csstudio.data.values.internal.Value

format, getDisplayChar, getMetaData, getSeverity, getStatus, getTime, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.csstudio.data.values.IValue

format, getMetaData, getSeverity, getStatus, getTime

Constructor Detail

LongValue

public LongValue(ITimestamp time,
                 ISeverity severity,
                 String status,
                 INumericMetaData metaData,
                 long[] values)

Constructs a new value from pieces.

Parameters:

time - the timestamp of the value

severity - the severity of the value

status - the status of the value

metaData - the metadata describing the PV

values - the values

Method Detail

getValues

public final long[] getValues()

Specified by:

getValues in interface ILongValue

Returns:

Returns the whole array of values.

getValue

public final long getValue()

Specified by:

getValue in interface ILongValue

Returns:

Returns the first array element.

Since most samples are probably scalars, this is a convenient way to get that one and only element.

See Also:

ILongValue.getValues()

format

public final String format(IValue.Format how,
                           int prec)

Description copied from interface: IValue

Format the value as a string.

This means only the numeric or string value. Not the timestamp, not the severity and status.

Specified by:

format in interface IValue

Specified by:

format in class Value

Parameters:

how - Detail on how to format.

prec - Might be used by some format types to select for example the number of digits after the decimal point. A precision of '-1' might select the default-precision obtained from the MetaData.

Returns:

This Value's value as a string.

equals

public final boolean equals(Object obj)

Overrides:

equals in class Value

hashCode

public final int hashCode()

Overrides:

hashCode in class Value